SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
kern-san.at
SSL/TLS Certificate
SSL/TLS Certificate for kern-san.at
Valid- Issued by (CA)
- ZeroSSL GmbH
- Subject
- *.kern-san.at
- Valid from
- Jul 16, 2026
- Valid until
- Oct 14, 2026 (78 days remaining)
- Public key
- RSA 4096-bit
- Serial
- 4088BAD8BD6AB993031B7B9C93FF4AC1
- SHA-256 fingerprint
- 0F:5F:7F:49:31:54:8E:7F:33:C7:4F:AC:FE:D4:C6:B3:D7:4D:EE:FB:9E:6E:F0:C3:BD:91:23:1D:A4:1D:57:3F
- Chain
- ZeroSSL RSA DV SSL CA 2 → Sectigo Public Server Authentication Root R46
Certificate Authority Authorization (CAA)
No CAA policy is published for this domain — any certificate authority may issue for it.
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Uptime
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DNS changes
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TLS certificate
We warn you 30, 14, 7, and 1 days before it expires, and flag it if the issuing authority changes or the certificate is unexpectedly replaced.
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